the first 5 is in the thousands place. The second 5 is in the hundredths place.
80 Pounds, If its above 5, round up, below round down.
Answer:
a) 
b) 
c) 
Step-by-step explanation:
For total cost function
, average cost is given by
i.e., total cost divided by number of units produced.
Marginal average cost function refers to derivative of the average cost function i.e., 
Given:
Average cost = 
a)
At x = 50 units,

b)
Average cost = 
c)
Marginal average cost:
Differentiate average cost with respect to 
Take 
using quotient rule, 
Therefore,

Money she will get = money she get in 1 h x 19
Money she get in 1 h = 108.75/15 =7.25$
Money in 19 hours = 19 x 7.25 = $137.75
Answer:
52
Step-by-step explanation: if 46 is 6marks higher than the lowest mark then, the lowest mark is 40
range = highest value-lowest value
so, 92-40=52